Generations ago..When I was in the public school business..we did a similar thing. We converted uneaten food into...
BACON...SAUSAGE...HAM...PORK CHOPS ....We were happy..the farmer was happy..Pigs were happy for a while??
The problem was...It Worked..Feds could not stand that. Therefore it became a banned practice.
Up until the late 70s, pig farmers from New Jersey had regular curbside pick-up routes throughout various residential neighborhoods in the City of Philadelphia for buckets of food garbage. The Italian Market area was one such slops-rich destination.